Trait SoaLayout 

pub trait SoaLayout: Component {
    const FIELD_COUNT: usize;
    const FIELD_NAMES: &'static [&'static str];

    // Required methods
    fn scatter_push(&self, fields: &mut [Vec<f32>]);
    fn scatter_set(&self, fields: &mut [Vec<f32>], row: usize);
    fn gather(fields: &[Vec<f32>], row: usize) -> Self;
}

Per-type knowledge the generic FieldSoaColumn needs to scatter a component into its f32 field arrays and gather it back.

Generated by #[derive(Component)] + #[component(layout = "soa")] for structs whose fields are all f32. The array order matches field declaration order.

Required Associated Constants

const FIELD_COUNT: usize

Number of f32 fields this component decomposes into.

const FIELD_NAMES: &'static [&'static str]

Field names in declaration order (for the glass-box / debugging).

Required Methods

fn scatter_push(&self, fields: &mut [Vec<f32>])

Appends each of self’s fields onto the matching field array (one new row).

fields.len() == FIELD_COUNT is guaranteed by the caller.

fn scatter_set(&self, fields: &mut [Vec<f32>], row: usize)

Overwrites row row of every field array with self’s fields.

fields.len() == FIELD_COUNT and row in bounds are guaranteed.

fn gather(fields: &[Vec<f32>], row: usize) -> Self

Reconstructs a value from row row across the field arrays.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors